Thümen, Fungi Austr. Exs.
F.K.A.E.J. de Thümen [1-1200]

University of Illinois Herbarium
Catalog #: ILL00086042
de Thümen s.n.
Melampsora populina f. populi balsamiferae Tul.
Czech Republic, Bohemia, Hernskretschen; Hernskretschen

Rutgers University, Chrysler Herbarium - Mycology Collection
Catalog #: CHRB-F-0011266
De Thumen #s.n.
Melampsora populina (Jacq.) Lév.
Czech Republic, Bohemia

USDA United States National Fungus Collections
Catalog #: BPI 025069
Thuemen s.n.
Melampsora populina (Jacq.) Lév.
Czechoslovakia, Northern Bohemia, Hrensko (Herrnskretschen)